Battery energy storage solutions for utilities From first time energy storage projects to multiple BESS implementations, FlexGen guides utilities through project development with supply chain depth and operational certainty to meet evolving energy demands. Talk to an Expert Grid complexity is growing. FlexGen is built for what's next. Support for engineering, design procurement, long-term service One accountable partner throughout the project lifecycle FlexGen is your single point of accountability to design, procure, integrate, commission, and manage battery energy storage systems.BESS assets need to perform for 20+ years. FlexGen maximizes performance with best-in-class software, remote operations, and field services - wrapped in a single lifecycle services agreement. Tailor projects through multi-vendor hardware expertise Site availability and performance guarantees 24/7 remote operations centers Speed up asset readiness via lab-validated commissioning 150+ field technicians with regional coverage across a global footprint Global OEM relationships. Dispatch in real-time. Accelerate time to revenue. Meet reliability obligations. Grid operators need to maintain frequency, manage congestion, and integrate variable renewables, all while operating aging infrastructure. FlexGen offers the tools and relationships to ensure success. End-to-end battery and PCS procurement with gap-less scope and contracts. Relationships with top-tier global OEMs- including non-FEOC and U.S. manufacturers Automatic generation control (AGC) integration Voltage support and reactive power management HybridOS™: the EMS built for grid-scale operations Utilities need software that dispatches intelligently and integrates with existing SCADA and control systems. HybridOS™, FlexGen’s energy management software, continuously orchestrates every energy asset on your site and scales across your growing portfolio, ensuring your site maintains the performance and compliance grid operators require. Learn More About HybridOS™ EMS Learn more about Flexgen in action Blog Supporting ERCOT’s RTC+B Cutover at Scale RTC+B restructured ERCOT’s market design, directly impacting how battery assets are dispatched, awarded ancillary services, and settled. With operational discipline and our HybridOS EMS software, FlexGen ensured 36 customer battery sites… Learn More 17 years of experience across energy markets 200+ Projects completed. Serving customers with unique needs including developers, IPPs, EPCs, utilities, munis, co-ops, data centers and more. 25+ GWh completed and under contract. That’s enough storage capacity to provide electricity to more than 5 million average U.S. homes for 4 hours. 10+ Countries with active and contracted deployments. FlexGen supports a variety of energy projects across all 10 U.S. markets and internationally. 80+ Validated battery and PCS configurations. Every battery and PCS hardware combination is pre-integrated with HybridOS™ before it’s on site. Ready to build your project and hit your reliability targets? FlexGen experts can assess your site, market, and reliability requirements, and guide you to the right energy storage system strategy. Talk to an Expert Frequently Asked Questions What markets does FlexGen operate in? FlexGen has completed projects across all 10 U.S. energy markets and internationally, with deep integration experience in ERCOT, PJM, CAISO, MISO, and SPP. What does “software-forward” mean for supply chain flexibility? HybridOS™ is the constant in every FlexGen project. Because our software is validated across 80+ battery and PCS configurations, you’re not locked into a single OEM, and you get consistent performance regardless of hardware source. Does FlexGen provide long-term service agreements? Yes. FlexGen bundles software, LTSA, and field services under a single agreement, simplifying vendor management and ensuring performance accountability across the asset lifecycle. What cybersecurity certifications does FlexGen hold? FlexGen holds ISO 27001:2022 and ISO 27001:2013 certifications and has completed a NIS 2 Directive assessment. HybridOS™ is US-built, with security-first architecture designed for critical infrastructure environments. View the latest certificate stack at trust.flexgen.com. What does the commissioning process look like? FlexGen’s One-Touch Commissioning™ process completes integration validation in our lab before field mobilization, compressing timelines through four standardized phases: cold, warm, hot, and market qualification.
Blog Supporting ERCOT’s RTC+B Cutover at Scale RTC+B restructured ERCOT’s market design, directly impacting how battery assets are dispatched, awarded ancillary services, and settled. With operational discipline and our HybridOS EMS software, FlexGen ensured 36 customer battery sites… Learn More
